www.fairchildsemi.com KA5L0565R Fairchild Power Switch(FPSTM) Features Description • • • • • • • • • The Fairchild Power Switch(FPS) product family is specially designed for an off-line SMPS with minimal external components. The Fairchild Power Switch(FPS) consists of a high voltage power SenseFET and a current mode PWM IC. Included PWM controller integrates the fixed frequency oscillator, the under voltage lock-out, the leading edge blanking, the optimized gate turn-on/turn-off driver, the thermal shutdown protection, the over voltage protection, and the temperature compensated precision current sources for the loop compensation and the fault protection circuitry. Compared to a discrete MOSFET and a PWM controller or an RCCsolution, a Fairchild Power Switch(FPS) can reduce the total component count, design size and weight and at the same time increase efficiency, productivity, and system reliability. It has a basic platform well suited for the cost effective design in a flyback converter. Precision Fixed Operating Frequency (50kHz) Low Start-up Current(Typ. 100uA) Pulse by Pulse Current Limiting Over Current Protection Over Voltage Protection (Min. 25V) Internal Thermal Shutdown Function Under Voltage Lockout Internal High Voltage Sense FET Auto-Restart Mode TO-220F-4L 1 1. GND 2. DRAIN 3. VCC 4. FB Internal Block Diagram #3 VCC 32V 5V Vref Internal bias #2 DRAIN SFET Good logic OSC 9V 5µA S 1mA #4 FB R 2.5R 1R − 0.1V S − + 27V L.E.B + + 7.5V − Q Thermal S/D R Q #1 GND Power on reset OVER VOLTAGE S/D Rev.1.0.0 ©2004 Fairchild Semiconductor Corporation KA5L0565R Absolute Maximum Ratings Parameter Drain-Gate Voltage (RGS=1MΩ) Gate-Source (GND) Voltage (2) Symbol Value Unit VDGR 650 V VGS ±30 V IDM 20 ADC IAS(EAS) 13(400) A(mJ) Continuous Drain Current (TC=25°C) ID 5.0 ADC Continuous Drain Current (TC=100°C) ID 3.5 ADC VCC,MAX 30 V VFB -0.3 to VSD V PD 38 W Darting 0.3 W/°C TA -25 to +85 °C TSTG -55 to +150 °C Drain Current Pulsed Single Pulsed Avalanche Current (3)( Energy (2)) Maximum Supply Voltage Input Voltage Range Total Power Dissipation Operating Ambient Temperature Storage Temperature Notes: 1. Tj = 25°C to 150°C 2. Repetitive rating: Pulse width limited by maximum junction temperature 3. L = 30mH, VDD = 50V, RG = 27Ω, starting Tj = 25°C 2 KA5L0565R Electrical Characteristics (SenseFET part) (Ta=25°C unless otherwise specified) Parameter Symbol Condition Min. Drain-Source Breakdown Voltage BVDSS VGS=0V, ID=50µA 650 - - V VDS=Max., Rating, VGS=0V - - 50 µA VDS=0.8Max., Rating, VGS=0V, TC=125°C - - 200 µA RDS(ON) VGS=10V, ID=2.5A - 1.76 2.2 Ω gfs VDS=50V, ID=2.5A 2.5 - - S - 1457 - - 130 - - 38.8 - - - 60 Zero Gate Voltage Drain Current Static Drain-Source on Resistance (Note) Forward Transconductance IDSS (Note) Input Capacitance Ciss Output Capacitance Coss Reverse Transfer Capacitance Crss Turn on Delay Time td(on) Rise Time Turn Off Delay Time Fall Time tr td(off) tf Total Gate Charge (Gate-Source+Gate-Drain) Qg Gate-Source Charge Qgs Gate-Drain (Miller) Charge Qgd VGS=0V, VDS=25V, f=1MHz VDD=0.5BVDSS, ID=5.0A (MOSFET switching time are essentially independent of operating temperature) VGS=10V, ID=5.0A, VDS=0.5BVDSS (MOSFET switching time are essentially independent of operating temperature) Typ. Max. Unit - - 150 - - 300 - - 130 - - 56 - 10.3 - - 22.3 - pF nS nC Note: 1. Pulse test: Pulse width ≤ 300µS, duty cycle ≤ 2% 12. S = --R 3 KA5L0565R Electrical Characteristics (Control Part) (Continued) (Ta=25°C unless otherwise specified) Parameter Symbol Condition Min. Typ. Max. Unit Start Threshold Voltage VSTART - 14 15 16 V Stop Threshold Voltage VSTOP After turn on 8.4 9 9.6 V FOSC KA5L0565R 45 50 55 kHz ∆F/∆T -25°C ≤ Ta ≤ +85°C - ±5 ±10 % Dmax KA5L0565R 72 77 82 % UVLO SECTION OSCILLATOR SECTION Initial Accuracy Frequency Change With Temperature (2) Maximum Duty Cycle FEEDBACK SECTION Feedback Source Current IFB Ta=25°C, 0V ≤ Vfb ≤ 3V 0.7 0.9 1.1 mA Shutdown Feedback Voltage VSD - 6.9 7.5 8.1 V Shutdown Delay Current Idelay Ta=25°C, 5V ≤ Vfb ≤ VSD 4.0 5.0 6.0 µA Ta=25°C 4.80 5.00 5.20 V - 0.3 0.6 mV/°C 1.76 2.00 2.24 A REFERENCE SECTION Output Voltage (1) Temperature Stability Vref (1)(2) Vref/∆T -25°C ≤ Ta ≤ +85°C CURRENT LIMIT (SELF-PROTECTION) SECTION Peak Current Limit IOVER Max. inductor current PROTECTION SECTION Thermal Shutdown Temperature (Tj) (1) Over Voltage Protection Voltage TSD - 140 160 - °C VOVP - 25 27 29 V TOTAL DEVICE SECTION Start Up Current Operating Supply Current (Control Part Only) ISTART VCC=14V - 100 170 uA IOP Ta=25°C - 7 12 mA Note: 1. These parameters, although guaranteed, are not 100% tested in production 2. These parameters, although guaranteed, are tested in EDS (wafer test) process 4 KA5L0565R Typical Performance Characteristics (These characteristic graphs are normalized at Ta=25°C) 1.2 1.15 1.1 1.05 Fosc 1 0.95 0.9 0.85 0.8 1.2 1.15 1.1 1.05 Ifb 1 0.95 0.9 0.85 0.8 -25 0 25 50 75 100 125 150 Figure 1. Operating Frequency 1.2 1.15 1.1 1.05 Iop 1 0.95 0.9 0.85 0.8 0 25 50 75 100 125 150 Figure 2. Feedback Source Current 1.1 1.05 Ipeak 1 0.95 0.9 0.85 0.8 -25 0 25 50 75 100 125 150 Figure 3. Operating Supply Current Istart -25 -25 0 25 50 75 100 125 150 Figure 4. Peak Current Limit 1.5 1.15 1.3 1.1 1.05 1.1 Vstart 1 0.9 0.95 0.7 0.9 0.5 0.85 -25 0 25 50 75 Figure 5. Start up Current 100 125 150 -25 0 25 50 75 100 125 150 Figure 6. Start Threshold Voltage 5 KA5L0565R Typical Performance Characteristics (Continued) (These characteristic graphs are normalized at Ta=25°C) 1.15 1.15 1.1 1.1 1.05 1.05 Vstop 1 Dmax 1 0.95 0.95 0.9 0.9 0.85 -25 0.85 0 25 50 75 100 125 150 -25 50 75 100 125 150 1.15 1.1 1.05 Vsd 1 0.95 0.9 0.85 -25 0 25 50 75 -25 100 125 150 Figure 9. VCC Zener Voltage 0 25 50 75 100 125 150 Figure 10. Shutdown Feedback Voltage 1.15 1.2 1.15 1.1 1.05 Idelay 1 0.95 0.9 0.85 0.8 1.1 1.05 Vovp 1 0.95 0.9 0.85 -25 0 25 50 75 100 125 150 Figure 11. Shutdown Delay Current 6 25 Figure 8. Maximum Duty Cycle Figure 7. Stop Threshold Voltage 1.2 1.15 1.1 1.05 Vz 1 0.95 0.9 0.85 0.8 0 -25 0 25 50 75 100 125 150 Figure 12. Over Voltage Protection KA5L0565R Typical Performance Characteristics (Continued) (These characteristic grahps are normalized at Ta=25°C) 2.5 2 1.5 Rdson 1 0.5 0 -25 0 25 50 75 100 125 150 Figure 13. Static Drain-Source on Resistance 7 KA5L0565R Package Dimensions TO-220F-4L 8 KA5L0565R Package Dimensions (Continued) TO-220F-4L(Forming) 9 KA5L0565R Ordering Information Product Number KA5L0565RTU KA5L0565RYDTU Package TO-220F-4L TO-220F-4L(Forming) Rating Fosc 650V, 5A 50kHz TU : Non Forming Type YDTU : Forming Type DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user. 2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. www.fairchildsemi.com 4/27/04 0.0m 001 Stock#DSxxxxxxxx 2004 Fairchild Semiconductor Corporation